| Name | Eupatorium rotundifolium var. scabridum (Elliott) A. Gray |
| Authorship | (Elliott) A. Gray |
| Rank | Variety |
| Placed in | Eupatorium rotundifolium Linnaeus |
| Citation | 1884 Syn. Fl. N. Amer. 1(2): 99 |
| Holdings | 21 Specimens held in the Harvard University Herbaria identified as Eupatorium rotundifolium var. scabridum (Elliott) A. Gray |
| Identification made in | [no date] (14), 1973 (7) |